The detachment was formed by soldiers from the 1/15 border subdivision in the village of Konsko, Gevgelija region, led by its commander Lieutenant Dicho Petrov on December 14, 1943.

Until entering the old borders of Bulgaria, the detachment was part of the Second Macedonian Strike Brigade[1] and led military operations against German forces near the villages of Konsko, Negortsi, Gevgelija, Lumnitsa, Fushtani and Livada.

They fought at Tumba Peak together with Yugoslav partisans, and also in the settlements of Kusa Vrana, Vlasi, Transki Odorovtsi, Smolovtsi, Rosoman, Dalgi Del and Govezhda.

[2][failed verification] It also included an English military mission led by Major Frank Thompson.

[3] On May 23, 1944, after crossing the Iskar River, they fought a fierce battle with army and gendarmerie units near the village of Batulia and were almost completely defeated.